Priming device for internal-combustion engines.



W. BROWN; Pmmms Divise mn iNEnNAL comus'now ENGINES.

APPLICATION FIL-ED MAFU 8.1915.

Patented J une 26, 1917.

2 SHEETS-SHEET l- W. BROWN. PIIIMING DEVICE FOR INTERNAL COMBUSTION ENGINES.

Mmc/(non mso MAR. me. A 1,231,124, i Patented Ju11e26, 1917.

2 SHEETS-SHEET 2.

.of the engine.

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WALTER. BROWN; or RACINE, WISCONSIN, AssIGNoR To WEBSTER ELECTRIC coiviiANir,

0F RACINE,- WISCONSIN, A CORPORATION OF WEST VIRGINIA.

PRIMING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Application filed March 8, 1916. Serial No. 82,805.

To all whom it may concern:

Be it known that I, WALTER BROWN, a citizen of the United States, residing at Racine. in the county of'Iacine and State of lVisconsin, have invented certain new and useful Improvements in Priming Devices for Internal-Combustion Engines, (Case 2,) of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming apart of this specification.

My invention relates to priming devices for internal combustion engines and has for its object thel provision of a primer attached to or forming part of a make and break contact support which is sturdy inA construction, which 'can be easily and quickly operated, and which can be cheaply manufactured In a make and break contact ignition sys-- -tem for internal combustion engines it is the the electrodes upon a practice to mount support or bracket and often times to also mount a magneto on the bracket for furnishing the electrical energy for the ignition system. In the preferred forni of my invention I provide this bracket with a well to receive the priming agent, the lower end of the well communicating through a bore in the bracket with the combustion chamber To control communication between the well and the combustion chamber I provide novel valve mechanism which can be cheaply manufactured and which can be quickly opened or closed. the closing of the valve in the preferred form of my invention being done automatically by spring means.

struction.

Fig. 2 is a side view of the plug and valve member for controlling communication between the well and the combustion chamber.

Fig. 3 is a slightly modified form of valve which dispenses with the spring for nor- `mally holding the valve member iii-closed position.

Patented J une 26, 1917.v I

Fig. 4? isa side elevational view ofthe 'K plug and valve member illustrated in Fig.

3, the valve member in this figure being.v

shown in open position.

Fig. 5 is a fragmentary view similar to Fig. '1, illustrating a modified 'form of primer attachment wherein the well is contained by the plug instead of by the'contact i bracket, and

Fig. Gis a side elevational view' of the' plug illustrated in Fig. 5;

Similar characters of reference refertov similar parts throughout the several views. It is not thought necessary vto go into the detailed description of the make and break contacts or the magneto since the details'k of these features form no part 'of`my in vention and will therefore refer to 'thembriefly. l

rThe internal combustion engine wallxi's which extends the plug Qsupporting vthe illustrated in dotted linesl at 8;. through make and break contacts 10. y The contacts l0 are thus located within thecombustioir chamber and furnish the sparks necessary to ignite the compressed gases. Theplugx forms part of the support or-lnacket'fl-l which is bolted or otherwise secured tothe `.i

casing of the engine.-

the magneto 1Q.

The. supportrll mary7 rotor shaft upon which is mounted the trip, finger 13 operated by the internalcombus` tion engine at the desired point of the en-- v gine cycle. This trip linger may-:be arr.- ranged to operate the movable electrode ,10 by means of the connecting arm 14. but itwill readily be understood that so far as my invention is concerned other means may be employed for operating the electrodes or the magneto.

The bracket l1 contains at its upper end a well 15 arranged to receive the Apriming agent or the gasolcne for priming purposes. The lower end of this well communicates by means of the bore 16 with the combustion chamber. as illustrated. The communication between the well and the bore 16 is controlled by means of a valve in the form of a plug 17 screwed into or otherwise secured to the support, and preferably extending ver-A tically throughithe'center of the well. The Aplug 17 is providedwith a bore 18, which affords communication between the wellv and -the bore 16.V For closing the lower end of' the borev 18 I provide the plungervalve -member 1'9, whichfcontains at its lower end the enlarged portionA 20 and at' its upper endv thefnger piece 21. A'spring 22 is in,

.terposed between the finger piece and the plug 'to' normally =hold l the valve member in closed' position. In priming the engine 44z,a lsolene is poured into the well 15 and the 'finger piece 21 depressed to .permit the gasopf-Iene` to travel downwardly into the combustion chamber. Immediately upon releasing thel finger piece the valve is caused to close wand" thus prevent communication between the'vcombustion chamber and the atmos- -phere In the 'modification unarmed in "Figsa and 4,?the spring 22 is dispensed with and 'a-v camlever 23 employed. This lever is bifurcated and pivoted at. 24 to the plunger valvem'ember 19a and has formed thereon the cams 25--25 arranged eccentric with' the pivot 24. When the lever 23 is -in the position illustrated in Fig. 3, the valve member 19a is-Ldrawn upwardly and communication between the well and the combustion chamber prevented.' When, however, the lev'er23 is pulled upwardly to the position illustrated in Fig. 4', the valve member 19HL is lowered and assumesthe position illustrated to per mit gasolene tor flow from the well to the Qmbiustion chamber; In the modification lustrated inFigs. 5 and 6 the plug 17b inead of the support contains the well. The

plunger valve member 19" carries the linger piece 21, between which and the base of I claim as new' desire to secure by Let.

ters Patent ofthe United States, is:

p 1. primer for internal combustionen gines comprising a .make and break contact support provided with a well to receive the primingagent, a plug extending vertically through the center of the well and secured tothe support, said plug being provided, 'with a bore extending between the lower end of the plug'and the lower end of the well, a plunger valve member extending 'longitudinally -through thelplug for closing the lower end of the bore, a fingerpiece carried at the upper end of the member, and a spring' interposed between the linger piece and'plug to normally holdthe valve in closed position, they .lower end of the bore communieating with the` combustion chamberof the engine whereby the priming agentjs caused to empty into the combustion chamber when the valve member is depressed.

2. A primer for internal combustion engines comprising a plug'having a bore extending vertically therethrough and having its'lower end externally threaded to thread into an internally threaded part carried Aby the engine, the internally threaded part hav-- ing communication with the combustion chamber of the engine, a plunger valve member extending vertically through the"bore and having an enlarged lower end to seal the bore when said end is held in .engagement with the plug, the upper end of said plunger valve extending beyond the plug and being there provided with means for normally holding the valve member in closed position, whereby a priming agent may be fed' through the bore to the combustion chamber of the engine when the plunger' valve member is moved downwardly to provide communication. between the bore'and the combustion chamber.

In witness whereof I hereunto subscribe my name this 6th day of March, A. D. 1916.

WALTER BROWN.

Witnesses:

A. G. McCALEB, H. A. NEIBURGER. 

